1. NgeIvalvu yeKlasi yeValve yeBhola yeXF83512C iqhagamshelwengentambo yombhobho, xa uyifaka kwaye uyiqinisa, umbhobho kufuneka umi nkqo kumphezulu wokugqibela womzimba wevalvu, kwaye isitshixo kufuneka sikrwelwe kwinxalenye yehexagonal okanye ye-octagonal kwicala elinye lomsonto, kwaye akufuneki sikrwelwe kwinxalenye yehexagonal okanye ye-octagonal okanye kwezinye iindawo zevalvu kwelinye icala. , Ukuze ingabangela ukuguquka komzimba wevalvu okanye ichaphazele ukuvulwa kwayo;

2. Ukuze uqhagamshele ivalvu yebhola nomsonto wangaphakathi, ubude bomsonto wangaphandle wesiphelo sombhobho kufuneka bulawulwe, ukuze kuthintelwe ukuba umsonto wesiphelo sombhobho ube mde kakhulu, ucinezele kumphezulu wesiphelo somsonto wangaphakathi wevalvu yebhola xa ungena ngaphakathi, nto leyo ebangela ukuguquka komzimba wevalvu kwaye ichaphazele ukusebenza kokutywinwa;

3. Xa ivalvu yebhola eqhagamshelwe ngentambo yombhobho iqhagamshelwe nomsonto wesiphelo sombhobho, umsonto wangaphakathi unokuba ngumsonto wombhobho onciphileyo okanye umsonto wombhobho osilinda, kodwa umsonto wangaphandle kufuneka ube ngumsonto wombhobho onciphileyo, kungenjalo uqhagamshelo aluyi kuba lukhuni kwaye ukuvuza kuya kubangelwa;

4. Xa ufaka ivalvu yebhola yeflange, isangqa sesalathisi kwivalvu yebhola yeflange kufuneka silingane nesangqa sesalathisi kwiflange yepayipi ukuze sihambelane. Umbindi wepayipi kuzo zombini iziphelo kufuneka umi nkqo kumphezulu weflange wevalvu yebhola yeflange, kungenjalo umzimba wevalvu uya kujikajika.

5. Xa ufaka ivalvu yebhola eqhagamshelwe ngentambo yombhobho, izinto zokutywina mazicoceke;

6. Xa ufaka, qiniseka ukuba akukho zithintelo ngaphakathi koluhlu lokuvula nokuvala kwesiphatho sevalvu yebhola, njengeendonga, iipayipi, iinati zokudibanisa, njl.njl.;

7. Xa isiphatho sevalvu yebhola sihambelana nomzimba wevalvu, sivulekile, kwaye xa sime nkqo, sivaliwe;

8. Umedium wevalvu yebhola yobhedu kufuneka ibe yigesi okanye ulwelo olungenazo iinxalenye kwaye olungabolisiyo;